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Finding the Fourth Proportional to 284.29, 425.72 and 162.32

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Solution

The fourth proportional to 284.29, 425.72 and 162.32 is: 243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.29 : 425.72 = 162.32 : x
  2. Step 2: Convert to fraction form
    284.29/425.72 = 162.32/x
  3. Step 3: Cross multiply
    284.29x = 425.72 × 162.32
  4. Step 4: Simplify right side
    284.29x = 69,101.15
  5. Step 5: Solve for x
    x = 69,101.15/284.29
  6. Step 6: Final answer
    x = 243.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.